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Code Issues Releases Wiki Activity

Further abstraction of audio classes... 

Originally committed to SVN as r169.
This commit is contained in:
Rodrigo Braz Monteiro 2006-02-25 06:52:07 +00:00
parent 4698ec6f6b
commit a94f17d2c4
5 changed files with 514 additions and 352 deletions
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3
core/audio_display.cpp
View File

@ -751,7 +751,8 @@ void AudioDisplay::SetFile(wxString file) {
else {
SetFile(_T(""));
try {
provider = new AudioProvider(file, this);
//provider = new AudioProvider(file, this);
provider = AudioProvider::GetAudioProvider(file, this);
loaded = true;

351
core/audio_provider.cpp
View File

@ -1,4 +1,4 @@
// Copyright (c) 2005, Rodrigo Braz Monteiro
// Copyright (c) 2005-2006, Rodrigo Braz Monteiro
// All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
@ -37,322 +37,26 @@
///////////
// Headers
#include <wx/wxprec.h>
#include <wx/filename.h>
#include <Mmreg.h>
#include "avisynth_wrap.h"
#include "utils.h"
#include "audio_provider.h"
#include "video_display.h"
#include "audio_provider_avs.h"
#include "options.h"
#include "audio_display.h"
#include "main.h"
#include "dialog_progress.h"
#define CacheBits ((22))
#define CacheBlockSize ((1 << CacheBits))
//////////////
///////////////
// Constructor
AudioProvider::AudioProvider(wxString _filename, AudioDisplay *_display) {
SetProvider(this);
SetDisplayTimer(&_display->UpdateTimer);
type = AUDIO_PROVIDER_NONE;
blockcache = NULL;
blockcount = 0;
AudioProvider::AudioProvider() {
raw = NULL;
display = _display;
blockcount = 0;
filename = _filename;
try {
OpenAVSAudio();
OpenStream();
}
catch (...) {
Unload();
throw;
}
}
//////////////
// Destructor
AudioProvider::~AudioProvider() {
CloseStream();
Unload();
}
////////////////
// Unload audio
void AudioProvider::Unload() {
// Clean up avisynth
clip = NULL;
// Close file
if (type == AUDIO_PROVIDER_DISK_CACHE) {
file_cache.close();
wxRemoveFile(DiskCacheName());
}
// Free ram cache
if (blockcache) {
for (int i = 0; i < blockcount; i++)
if (blockcache[i])
delete blockcache[i];
delete blockcache;
}
// Clear buffers
delete raw;
}
////////////////////////////
// Load audio from avisynth
void AudioProvider::OpenAVSAudio() {
// Set variables
type = AUDIO_PROVIDER_AVS;
AVSValue script;
// Prepare avisynth
wxMutexLocker lock(AviSynthMutex);
try {
const char * argnames[3] = { 0, "video", "audio" };
AVSValue args[3] = { env->SaveString(filename.mb_str(wxConvLocal)), false, true };
script = env->Invoke("DirectShowSource", AVSValue(args,3),argnames);
LoadFromClip(script);
} catch (AvisynthError &err) {
throw wxString::Format(_T("AviSynth error: %s"), wxString(err.msg,wxConvLocal));
}
}
/////////////////////////
// Read from environment
void AudioProvider::LoadFromClip(AVSValue _clip) {
// Prepare avisynth
AVSValue script;
// Check if it has audio
VideoInfo vi = _clip.AsClip()->GetVideoInfo();
if (!vi.HasAudio()) throw wxString(_T("No audio found."));
// Convert to one channel
char buffer[1024];
strcpy(buffer,Options.AsText(_T("Audio Downmixer")).mb_str(wxConvLocal));
script = env->Invoke(buffer, _clip);
// Convert to 16 bits per sample
script = env->Invoke("ConvertAudioTo16bit", script);
// Convert sample rate
int setsample = Options.AsInt(_T("Audio Sample Rate"));
if (setsample != 0) {
AVSValue args[2] = { script, setsample };
script = env->Invoke("ResampleAudio", AVSValue(args,2));
}
// Set clip
PClip tempclip = script.AsClip();
vi = tempclip->GetVideoInfo();
// Read properties
channels = vi.AudioChannels();
num_samples = vi.num_audio_samples;
sample_rate = vi.SamplesPerSecond();
bytes_per_sample = vi.BytesPerAudioSample();
// Read whole thing into ram cache
if (Options.AsInt(_T("Audio Cache")) == 1) {
ConvertToRAMCache(tempclip);
clip = NULL;
}
// Disk cache
else if (Options.AsInt(_T("Audio Cache")) == 2) {
ConvertToDiskCache(tempclip);
clip = NULL;
}
// Assign to avisynth
else {
clip = tempclip;
}
}
/////////////
// RAM Cache
void AudioProvider::ConvertToRAMCache(PClip &tempclip) {
// Allocate cache
__int64 ssize = num_samples * bytes_per_sample;
blockcount = (ssize + CacheBlockSize - 1) >> CacheBits;
blockcache = new char*[blockcount];
for (int i = 0; i < blockcount; i++)
blockcache[i] = NULL;
try {
for (int i = 0; i < blockcount; i++)
blockcache[i] = new char[MIN(CacheBlockSize,ssize-i*CacheBlockSize)];
} catch (...) {
for (int i = 0; i < blockcount; i++)
delete blockcache[i];
delete blockcache;
blockcache = NULL;
blockcount = 0;
if (wxMessageBox(_("Not enough ram available. Use disk cache instead?"),_("Audio Information"),wxICON_INFORMATION | wxYES_NO) == wxYES) {
ConvertToDiskCache(tempclip);
return;
} else
throw wxString(_T("Couldn't open audio, not enough ram available."));
}
// Start progress
volatile bool canceled = false;
DialogProgress *progress = new DialogProgress(NULL,_("Load audio"),&canceled,_("Reading into RAM"),0,num_samples);
progress->Show();
progress->SetProgress(0,1);
// Read cache
int readsize = CacheBlockSize / bytes_per_sample;
for (int i=0;i<blockcount && !canceled; i++) {
tempclip->GetAudio((char*)blockcache[i],i*readsize, i == blockcount-1 ? (num_samples - i*readsize) : readsize,env);
progress->SetProgress(i,blockcount-1);
}
type = AUDIO_PROVIDER_CACHE;
// Clean up progress
if (!canceled)
progress->Destroy();
else
throw wxString(_T("Audio loading cancelled by user"));
}
//////////////
// Disk Cache
void AudioProvider::ConvertToDiskCache(PClip &tempclip) {
// Check free space
wxLongLong freespace;
if (wxGetDiskSpace(DiskCachePath(), NULL, &freespace))
if (num_samples * channels * bytes_per_sample > freespace)
throw wxString(_T("Not enough free diskspace in "))+DiskCachePath()+wxString(_T(" to cache the audio"));
// Open output file
std::ofstream file;
char filename[512];
strcpy(filename,DiskCacheName().mb_str(wxConvLocal));
file.open(filename,std::ios::binary | std::ios::out | std::ios::trunc);
// Start progress
volatile bool canceled = false;
DialogProgress *progress = new DialogProgress(NULL,_T("Load audio"),&canceled,_T("Reading to Hard Disk cache"),0,num_samples);
progress->Show();
// Write to disk
int block = 4096;
char *temp = new char[block * channels * bytes_per_sample];
for (__int64 i=0;i<num_samples && !canceled; i+=block) {
if (block+i > num_samples) block = num_samples - i;
tempclip->GetAudio(temp,i,block,env);
file.write(temp,block * channels * bytes_per_sample);
progress->SetProgress(i,num_samples);
}
file.close();
type = AUDIO_PROVIDER_DISK_CACHE;
// Finish
if (!canceled) {
progress->Destroy();
file_cache.open(filename,std::ios::binary | std::ios::in);
}
else
throw wxString(_T("Audio loading cancelled by user"));
}
////////////////
// Get filename
wxString AudioProvider::GetFilename() {
return filename;
}
int aaa = 0;
/////////////
// Get audio
void AudioProvider::GetAudio(void *buf, __int64 start, __int64 count) {
// Requested beyond the length of audio
if (start+count > num_samples) {
__int64 oldcount = count;
count = num_samples-start;
if (count < 0) count = 0;
// Fill beyond with zero
if (bytes_per_sample == 1) {
char *temp = (char *) buf;
for (int i=count;i<oldcount;i++) {
temp[i] = 0;
}
}
if (bytes_per_sample == 2) {
short *temp = (short *) buf;
for (int i=count;i<oldcount;i++) {
temp[i] = 0;
}
}
}
if (count) {
char *charbuf = (char *)buf;
// RAM Cache
if (type == AUDIO_PROVIDER_CACHE) {
int i = (start*bytes_per_sample) >> CacheBits;
int start_offset = (start*bytes_per_sample) & (CacheBlockSize-1);
__int64 bytesremaining = count*bytes_per_sample;
while (bytesremaining) {
int readsize=MIN(bytesremaining,CacheBlockSize);
readsize = MIN(readsize,CacheBlockSize - start_offset);
memcpy(charbuf,(char *)(blockcache[i++]+start_offset),readsize);
charbuf+=readsize;
start_offset=0;
bytesremaining-=readsize;
}
}
// Disk cache
else if (type == AUDIO_PROVIDER_DISK_CACHE) {
wxMutexLocker disklock(diskmutex);
file_cache.seekg(start*bytes_per_sample);
file_cache.read((char*)buf,count*bytes_per_sample*channels);
}
// Avisynth
else {
wxMutexLocker disklock(diskmutex);
clip->GetAudio(buf,start,count,env);
}
}
}
//////////////////////////
// Get number of channels
int AudioProvider::GetChannels() {
@ -374,6 +78,20 @@ int AudioProvider::GetSampleRate() {
}
////////////////////////
// Get bytes per sample
int AudioProvider::GetBytesPerSample() {
return bytes_per_sample;
}
////////////////
// Get filename
wxString AudioProvider::GetFilename() {
return filename;
}
////////////////
// Get waveform
void AudioProvider::GetWaveForm(int *min,int *peak,__int64 start,int w,int h,int samples,float scale) {
@ -439,16 +157,25 @@ void AudioProvider::GetWaveForm(int *min,int *peak,__int64 start,int w,int h,int
}
///////////////////////////
// Get disk cache path
wxString AudioProvider::DiskCachePath() {
return AegisubApp::folderName;
////////////////
// Get provider
AudioProvider *AudioProvider::GetAudioProvider(wxString filename, AudioDisplay *display) {
// Prepare provider
AudioProvider *provider = NULL;
// Select provider
#ifdef __WINDOWS__
provider = new AvisynthAudioProvider(filename);
#endif
// No provider found
if (!provider) {
throw _T("Could not initialize any audio provider.");
}
// Set up provider
provider->SetDisplayTimer(&display->UpdateTimer);
// Return
return provider;
}
///////////////////////////
// Get disk cache filename
wxString AudioProvider::DiskCacheName() {
return DiskCachePath() + _T("audio.tmp");
}

51
core/audio_provider.h
View File

@ -1,4 +1,4 @@
// Copyright (c) 2005, Rodrigo Braz Monteiro
// Copyright (c) 2006, Rodrigo Braz Monteiro
// All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
@ -51,60 +51,33 @@
class AudioDisplay;
//////////////
// Types enum
enum AudioProviderType {
AUDIO_PROVIDER_NONE,
AUDIO_PROVIDER_AVS,
AUDIO_PROVIDER_CACHE,
AUDIO_PROVIDER_DISK_CACHE
};
////////////////////////
// Audio provider class
class AudioProvider : public AviSynthWrapper, public PortAudioPlayer {
class AudioProvider : public PortAudioPlayer {
private:
wxMutex diskmutex;
AudioProviderType type;
char** blockcache;
int blockcount;
void *raw;
int raw_len;
AudioDisplay *display;
std::ifstream file_cache;
wxString filename;
PClip clip;
protected:
int channels;
__int64 num_samples;
int sample_rate;
int bytes_per_sample;
void ConvertToRAMCache(PClip &tempclip);
void ConvertToDiskCache(PClip &tempclip);
void LoadFromClip(AVSValue clip);
void OpenAVSAudio();
static wxString DiskCachePath();
static wxString DiskCacheName();
void SetFile();
void Unload();
wxString filename;
public:
AudioProvider(wxString _filename, AudioDisplay *_display);
~AudioProvider();
AudioProvider();
virtual ~AudioProvider();
wxString GetFilename();
void GetAudio(void *buf, __int64 start, __int64 count);
void GetWaveForm(int *min,int *peak,__int64 start,int w,int h,int samples,float scale);
virtual wxString GetFilename();
virtual void GetAudio(void *buf, __int64 start, __int64 count)=0;
int GetChannels();
__int64 GetNumSamples();
int GetSampleRate();
int GetBytesPerSample();
void GetWaveForm(int *min,int *peak,__int64 start,int w,int h,int samples,float scale);
static AudioProvider *GetAudioProvider(wxString filename, AudioDisplay *display);
};

363
core/audio_provider_avs.cpp Normal file
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@ -0,0 +1,363 @@
// Copyright (c) 2005-2006, Rodrigo Braz Monteiro
// All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are met:
//
// * Redistributions of source code must retain the above copyright notice,
// this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above copyright notice,
// this list of conditions and the following disclaimer in the documentation
// and/or other materials provided with the distribution.
// * Neither the name of the Aegisub Group nor the names of its contributors
// may be used to endorse or promote products derived from this software
// without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
// AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
// ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
// LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
// CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
// SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
// CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
// ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
// POSSIBILITY OF SUCH DAMAGE.
//
// -----------------------------------------------------------------------------
//
// AEGISUB
//
// Website: http://aegisub.cellosoft.com
// Contact: mailto:zeratul@cellosoft.com
//
///////////
// Headers
#include <wx/wxprec.h>
#ifdef __WINDOWS__
#include <wx/filename.h>
#include <Mmreg.h>
#include "avisynth_wrap.h"
#include "utils.h"
#include "audio_provider_avs.h"
#include "options.h"
#include "main.h"
#include "dialog_progress.h"
#define CacheBits ((22))
#define CacheBlockSize ((1 << CacheBits))
//////////////
// Constructor
AvisynthAudioProvider::AvisynthAudioProvider(wxString _filename) {
SetProvider(this);
type = AUDIO_PROVIDER_NONE;
blockcache = NULL;
blockcount = 0;
blockcount = 0;
filename = _filename;
try {
OpenAVSAudio();
OpenStream();
}
catch (...) {
Unload();
throw;
}
}
//////////////
// Destructor
AvisynthAudioProvider::~AvisynthAudioProvider() {
CloseStream();
Unload();
}
////////////////
// Unload audio
void AvisynthAudioProvider::Unload() {
// Clean up avisynth
clip = NULL;
// Close file
if (type == AUDIO_PROVIDER_DISK_CACHE) {
file_cache.close();
wxRemoveFile(DiskCacheName());
}
// Free ram cache
if (blockcache) {
for (int i = 0; i < blockcount; i++)
if (blockcache[i])
delete blockcache[i];
delete blockcache;
}
}
////////////////////////////
// Load audio from avisynth
void AvisynthAudioProvider::OpenAVSAudio() {
// Set variables
type = AUDIO_PROVIDER_AVS;
AVSValue script;
// Prepare avisynth
wxMutexLocker lock(AviSynthMutex);
try {
const char * argnames[3] = { 0, "video", "audio" };
AVSValue args[3] = { env->SaveString(filename.mb_str(wxConvLocal)), false, true };
script = env->Invoke("DirectShowSource", AVSValue(args,3),argnames);
LoadFromClip(script);
} catch (AvisynthError &err) {
throw wxString::Format(_T("AviSynth error: %s"), wxString(err.msg,wxConvLocal));
}
}
/////////////////////////
// Read from environment
void AvisynthAudioProvider::LoadFromClip(AVSValue _clip) {
// Prepare avisynth
AVSValue script;
// Check if it has audio
VideoInfo vi = _clip.AsClip()->GetVideoInfo();
if (!vi.HasAudio()) throw wxString(_T("No audio found."));
// Convert to one channel
char buffer[1024];
strcpy(buffer,Options.AsText(_T("Audio Downmixer")).mb_str(wxConvLocal));
script = env->Invoke(buffer, _clip);
// Convert to 16 bits per sample
script = env->Invoke("ConvertAudioTo16bit", script);
// Convert sample rate
int setsample = Options.AsInt(_T("Audio Sample Rate"));
if (setsample != 0) {
AVSValue args[2] = { script, setsample };
script = env->Invoke("ResampleAudio", AVSValue(args,2));
}
// Set clip
PClip tempclip = script.AsClip();
vi = tempclip->GetVideoInfo();
// Read properties
channels = vi.AudioChannels();
num_samples = vi.num_audio_samples;
sample_rate = vi.SamplesPerSecond();
bytes_per_sample = vi.BytesPerAudioSample();
// Read whole thing into ram cache
if (Options.AsInt(_T("Audio Cache")) == 1) {
ConvertToRAMCache(tempclip);
clip = NULL;
}
// Disk cache
else if (Options.AsInt(_T("Audio Cache")) == 2) {
ConvertToDiskCache(tempclip);
clip = NULL;
}
// Assign to avisynth
else {
clip = tempclip;
}
}
/////////////
// RAM Cache
void AvisynthAudioProvider::ConvertToRAMCache(PClip &tempclip) {
// Allocate cache
__int64 ssize = num_samples * bytes_per_sample;
blockcount = (ssize + CacheBlockSize - 1) >> CacheBits;
blockcache = new char*[blockcount];
for (int i = 0; i < blockcount; i++)
blockcache[i] = NULL;
try {
for (int i = 0; i < blockcount; i++)
blockcache[i] = new char[MIN(CacheBlockSize,ssize-i*CacheBlockSize)];
} catch (...) {
for (int i = 0; i < blockcount; i++)
delete blockcache[i];
delete blockcache;
blockcache = NULL;
blockcount = 0;
if (wxMessageBox(_("Not enough ram available. Use disk cache instead?"),_("Audio Information"),wxICON_INFORMATION | wxYES_NO) == wxYES) {
ConvertToDiskCache(tempclip);
return;
} else
throw wxString(_T("Couldn't open audio, not enough ram available."));
}
// Start progress
volatile bool canceled = false;
DialogProgress *progress = new DialogProgress(NULL,_("Load audio"),&canceled,_("Reading into RAM"),0,num_samples);
progress->Show();
progress->SetProgress(0,1);
// Read cache
int readsize = CacheBlockSize / bytes_per_sample;
for (int i=0;i<blockcount && !canceled; i++) {
tempclip->GetAudio((char*)blockcache[i],i*readsize, i == blockcount-1 ? (num_samples - i*readsize) : readsize,env);
progress->SetProgress(i,blockcount-1);
}
type = AUDIO_PROVIDER_CACHE;
// Clean up progress
if (!canceled)
progress->Destroy();
else
throw wxString(_T("Audio loading cancelled by user"));
}
//////////////
// Disk Cache
void AvisynthAudioProvider::ConvertToDiskCache(PClip &tempclip) {
// Check free space
wxLongLong freespace;
if (wxGetDiskSpace(DiskCachePath(), NULL, &freespace))
if (num_samples * channels * bytes_per_sample > freespace)
throw wxString(_T("Not enough free diskspace in "))+DiskCachePath()+wxString(_T(" to cache the audio"));
// Open output file
std::ofstream file;
char filename[512];
strcpy(filename,DiskCacheName().mb_str(wxConvLocal));
file.open(filename,std::ios::binary | std::ios::out | std::ios::trunc);
// Start progress
volatile bool canceled = false;
DialogProgress *progress = new DialogProgress(NULL,_T("Load audio"),&canceled,_T("Reading to Hard Disk cache"),0,num_samples);
progress->Show();
// Write to disk
int block = 4096;
char *temp = new char[block * channels * bytes_per_sample];
for (__int64 i=0;i<num_samples && !canceled; i+=block) {
if (block+i > num_samples) block = num_samples - i;
tempclip->GetAudio(temp,i,block,env);
file.write(temp,block * channels * bytes_per_sample);
progress->SetProgress(i,num_samples);
}
file.close();
type = AUDIO_PROVIDER_DISK_CACHE;
// Finish
if (!canceled) {
progress->Destroy();
file_cache.open(filename,std::ios::binary | std::ios::in);
}
else
throw wxString(_T("Audio loading cancelled by user"));
}
////////////////
// Get filename
wxString AvisynthAudioProvider::GetFilename() {
return filename;
}
int aaa = 0;
/////////////
// Get audio
void AvisynthAudioProvider::GetAudio(void *buf, __int64 start, __int64 count) {
// Requested beyond the length of audio
if (start+count > num_samples) {
__int64 oldcount = count;
count = num_samples-start;
if (count < 0) count = 0;
// Fill beyond with zero
if (bytes_per_sample == 1) {
char *temp = (char *) buf;
for (int i=count;i<oldcount;i++) {
temp[i] = 0;
}
}
if (bytes_per_sample == 2) {
short *temp = (short *) buf;
for (int i=count;i<oldcount;i++) {
temp[i] = 0;
}
}
}
if (count) {
char *charbuf = (char *)buf;
// RAM Cache
if (type == AUDIO_PROVIDER_CACHE) {
int i = (start*bytes_per_sample) >> CacheBits;
int start_offset = (start*bytes_per_sample) & (CacheBlockSize-1);
__int64 bytesremaining = count*bytes_per_sample;
while (bytesremaining) {
int readsize=MIN(bytesremaining,CacheBlockSize);
readsize = MIN(readsize,CacheBlockSize - start_offset);
memcpy(charbuf,(char *)(blockcache[i++]+start_offset),readsize);
charbuf+=readsize;
start_offset=0;
bytesremaining-=readsize;
}
}
// Disk cache
else if (type == AUDIO_PROVIDER_DISK_CACHE) {
wxMutexLocker disklock(diskmutex);
file_cache.seekg(start*bytes_per_sample);
file_cache.read((char*)buf,count*bytes_per_sample*channels);
}
// Avisynth
else {
wxMutexLocker disklock(diskmutex);
clip->GetAudio(buf,start,count,env);
}
}
}
///////////////////////////
// Get disk cache path
wxString AvisynthAudioProvider::DiskCachePath() {
return AegisubApp::folderName;
}
///////////////////////////
// Get disk cache filename
wxString AvisynthAudioProvider::DiskCacheName() {
return DiskCachePath() + _T("audio.tmp");
}
#endif

98
core/audio_provider_avs.h Normal file
View File

@ -0,0 +1,98 @@
// Copyright (c) 2006, Rodrigo Braz Monteiro
// All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are met:
//
// * Redistributions of source code must retain the above copyright notice,
// this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above copyright notice,
// this list of conditions and the following disclaimer in the documentation
// and/or other materials provided with the distribution.
// * Neither the name of the Aegisub Group nor the names of its contributors
// may be used to endorse or promote products derived from this software
// without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
// AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
// ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
// LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
// CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
// SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
// CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
// ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
// POSSIBILITY OF SUCH DAMAGE.
//
// -----------------------------------------------------------------------------
//
// AEGISUB
//
// Website: http://aegisub.cellosoft.com
// Contact: mailto:zeratul@cellosoft.com
//
#pragma once
///////////
// Headers
#include <wx/wxprec.h>
#ifdef __WINDOWS__
#include <fstream>
#include <time.h>
#include "avisynth_wrap.h"
#include "audio_provider.h"
//////////////
// Types enum
enum AudioProviderType {
AUDIO_PROVIDER_NONE,
AUDIO_PROVIDER_AVS,
AUDIO_PROVIDER_CACHE,
AUDIO_PROVIDER_DISK_CACHE
};
////////////////////////
// Audio provider class
class AvisynthAudioProvider : public AudioProvider, public AviSynthWrapper {
private:
wxMutex diskmutex;
AudioProviderType type;
char** blockcache;
int blockcount;
AudioDisplay *display;
std::ifstream file_cache;
wxString filename;
PClip clip;
void ConvertToRAMCache(PClip &tempclip);
void ConvertToDiskCache(PClip &tempclip);
void LoadFromClip(AVSValue clip);
void OpenAVSAudio();
static wxString DiskCachePath();
static wxString DiskCacheName();
void SetFile();
void Unload();
public:
AvisynthAudioProvider(wxString _filename);
~AvisynthAudioProvider();
wxString GetFilename();
void GetAudio(void *buf, __int64 start, __int64 count);
void GetWaveForm(int *min,int *peak,__int64 start,int w,int h,int samples,float scale);
};
#endif